perkam



'(No Modl.)

H. T. PERRAM. THILL COUPLING.-

No. 251,935. Patented Jan. 3,1882.

--UNITED STATES PATENT- OFFICE.

HENRY. PERRAM, OF STAMFORD, ONTARIO, CANADA.

THILL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 251,935, dated January 3, 1882. Application filed August 20, 1881. (No model.)

To all whom it may concern:

Be it known that I, HENRY TOPHAM PER- RAM, of the village of Stamford, in the county of Welland, in the Province of Ontario, Ganada, farmer, have invented acertain new and useful Thin-Coupling, of which the following is a specification.

The object of the invention is to provide a coupling which can be quickly connected and easily disconnected, but which will not readily become uufastened by itself.

In the drawings, Figure 1 is a perspective view, showing the coupling complete, Fig. 2 is a cross-section of the same. Fig. 3 is a perspective detail, showing the coupling with the shaft removed. Fig. 4 is a detail of the coupling-pin and ends thereof. Fig. 5 is a detail of the spring used in fastening the coupling.

In the drawings, A is the ordinary socket to receive the end of the thill B.

C is a pin, having fastened on one of its ends a head, D, having a curved slot, a, made in it to receive the spring E when in position, as shown in Fig. 1.

F is a hook shaped detachable bracket,

formed to gripe one of the lugs of the bracket.

A, and having a hole, 12, in it, through which the end of the spring E is inserted.

G is apiece of rubber or-other suitable elastic material inserted behind the end of the thill, immediately below the center of the spring E.

In order to couple the shaft the thill is put in the socket in the ordinary way and the pin 0 inserted. The bracket F is then hooked onto its lug, as shown in Fig. 2, when, the rubber G being inserted, the end of the spring E is passed through the hole b and its frontsprung into the slotted passage-way a on the head I) a in the head D, the center of the spring being sprung over an elastic block, G, substantially as and for the purpose specified.

HY. T. PERRAM.

VVituesses:

N. G. HILL, JOHN OoULsoN. 

